| Patents for John L. Martin |
Patents 1 -
6
of 6
      |
| Picture | Number | Date | Patentee | Title |
| | 2,816,487 | Dec. 17, 1957 | J.L. Martin, H.L. Heywood, J.B. Armitage | Milling Machine |
| | 2,963,945 | Dec. 13, 1960 | F. Zankl, J.G. Osburn, J.L. Martin, O.W. Barker | Transmission and Control Mechanism |
 | CA-634,743 | Jan. 16, 1962 | F. Zankl, J.G. Osburn, O.W. Barker, J.L. Martin | Transmission and control mechanism |
| | 3,458,881 | Aug. 05, 1969 | J.L. Martin, E.F. Drechsler | Machine Tool Variable Power Transmission |
| | 3,477,121 | Nov. 11, 1969 | J.L. Martin | Machining Center with Dual Function Tool Operator |
 | CA-873,071 | Jun. 15, 1971 | J.L. Martin | Machining center with dual function tool operator |
